Las Vegas shooter Stephen Paddock's second home in Reno, NevadaCredit: John Chapple

He also placed a camera in a food service cart outside his room so he could see when cops were outside his door, according to Sky News.

Neighbours surrounding his second home in Reno, Nevada, now believe he stashed the deadly weapons used in his killing spree in his giant safe.

In an exclusive interview with Sun Online, Suzy Page, 68, who lives next door to Paddock and his girlfriend Marilou Danley, said: “It was the talk of the neighbourhood what on earth he had stashed in the safe, it was as big as a refrigerator.

“We would all joke and say, ‘I wonder how much money he has stashed in there?’

“Now we are all horrified thinking maybe it wasn’t money in there at all – but the guns he used to kill these poor people.

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Neighbours described Paddock, pictured, as a 'reclusive weirdo'Credit: Reuters

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Local residents said Paddock and his girlfriend suddenly left town in AugustCredit: John Chapple

“It’s hard to believe in this quiet caring community a monster was living next door.

“But now when we think about it he was such a reclusive weirdo, so maybe it isn’t that surprising after all.

“I lived next door to him and his girlfriend and never once got as much as a smile out of him.

“They had barely any furniture in the house and nothing in the yard, the shades were always down and it was like they were not even living there.